One vertex per element, one color per generator, with an edge from x to x·s.
(1,2,4,6)(3,5,7,8)(9,10,13,11)(12,15,16,14)(17,18)(19,27)(20,23)(21,31)(22,24)(25,29)(26,28)(30,32)(1,3)(2,5)(4,7)(6,8)(9,11,13,10)(12,14,16,15)(17,19,28,30,22,29,21,20)(18,23,31,25,24,32,26,27)(9,12,13,16)(10,14,11,15)(18,24)(19,29)(20,30)(26,31)(3,7)(5,8)(10,11)(14,15)(18,24)(19,29)(20,30)(26,31) involution — undirected(17,20,21,29,22,30,28,19)(18,25,26,23,24,27,31,32)A Cayley diagram is a choice, not a fact about the group. Another drawing of this group — in a book, or on a different generating set — may look nothing like this one.